result_dart

• tap operator for debugging and logging intermediate states in a chain.
• filter operator for conditional Success-to-Failure conversion.
• zip operator for combining two Results using Dart 3 Records.
• flatten operator (extension) for unwrapping nested Results.
• recoverWhen operator for conditional recovery by predicate.
• toString() override on Success and Failure for better debug output.
• Best Practices section in README (scoped recovery, custom exceptions with stack trace).

Added

• tap operator for debugging and logging intermediate states in a chain.
• filter operator for conditional Success-to-Failure conversion.
• zip operator for combining two Results using Dart 3 Records.
• flatten operator (extension) for unwrapping nested Results.
• recoverWhen operator for conditional recovery by predicate.
• toString() override on Success and Failure for better debug output.
• Best Practices section in README (scoped recovery, custom exceptions with stack trace).

• Fix linter problems.

What's Changed

Full Changelog: 1.1.1...v2.1.0

• Added pureFold and mapFold operators.

• This version aims to reduce the Result boilerplate by making the Failure type Exception by default. This will free the Result from having to type Failure, making the declaration smaller.

If there is a need to type Failure, use ResultDart.

Added

• Introduced typedef for Result<S> and AsyncResult<S> to simplify usage:
  • Result<S> is a simplified alias for ResultDart<S, Exception>.
  • AsyncResult<S> is a simplified alias for AsyncResultDart<S, Exception>.

Changed

• Replaced Result class with ResultDart as the base class for all results.
  • Default failure type for ResultDart is now Exception.
  • This change reduces boilerplate and improves usability by eliminating the need to specify the failure type explicitly in most cases.

Removed

• Remove factories Result.success and Result.failure.

Migration Guide

• In version >=2.0.0, the Failure typing is by default an Exception, but if there is a need to type it, use ResultDart<Success, Failure>.

only Success type:

// Old
Result<int, Exception> myResult = Success(42);

// NEW
Result<int> myResult = Success(42);

with Success and Failure types:

// Old
Result<int, String> myResult = Success(42);

// NEW
ResultDart<int, String> myResult = Success(42);

• This version aims to reduce the Result boilerplate by making the Failure type Exception by default. This will free the Result from having to type Failure, making the declaration smaller.

If there is a need to type Failure, use ResultDart.

Added

• Introduced typedef for Result<S> and AsyncResult<S> to simplify usage:
  • Result<S> is a simplified alias for ResultDart<S, Exception>.
  • AsyncResult<S> is a simplified alias for AsyncResultDart<S, Exception>.

Changed

• Replaced Result class with ResultDart as the base class for all results.
  • Default failure type for ResultDart is now Exception.
  • This change reduces boilerplate and improves usability by eliminating the need to specify the failure type explicitly in most cases.

Removed

• Remove factories Result.success and Result.failure.

Migration Guide

• In version >=2.0.0, the Failure typing is by default an Exception, but if there is a need to type it, use ResultDart<Success, Failure>.

only Success type:

// Old
Result<int, Exception> myResult = Success(42);

// NEW
Result<int> myResult = Success(42);

with Success and Failure types:

// Old
Result<int, String> myResult = Success(42);

// NEW
ResultDart<int, String> myResult = Success(42);

What's Changed

• Feature/const constructors by @eKaramihov in #4
• fix: remove unused generic param in onSuccess and onFailure by @davidmigloz in #5
• Update README.md discord link by @thKali in #14
• Update .gitignore to include .vscode directory by @EchoEllet in #9
• Delete .vscode/settings.json by @EchoEllet in #10

New Contributors

• @eKaramihov made their first contribution in #4
• @davidmigloz made their first contribution in #5
• @thKali made their first contribution in #14
• @EchoEllet made their first contribution in #9

Full Changelog: v1.0.5...1.1.1

• pump Dart version to 3.0.0
• fix: factory const

• feat: Added onSuccess and onFailure callbacks

• feat: Dart 3.0.0 support

feat: Added FutureOr in AsyncResult.MapError

• feat: Added FutureOr in AsyncResult.MapError

feat: Added FutureOr in AsyncResult.Map

• feat: Added FutureOr in AsyncResult.Map

fix: AsyncResult recover

• fix: AsyncResult recover

fix: separed functions.dart import

• fix: separed functions.dart import

• fix: recover operator return a Result instead a Result.

• fix: recover operator return a Result instead a Failure.

• Initial release